LVM does not offer features like Fast Cloning and thin provisioning, EXT does but has performance issues because of the ext3 support for AIO+DIO. LVHD addresses this by hosting VHD files directly on LVM volumes.

Citrix Ready Open Storage Program The new Citrix Ready Open Storage Program for storage partners. Leveraging StorageLink tm , part of the new Citrix Essentials&amp;#x2122; for XenServer&amp;#x2122; and Hyper-V&amp;#x2122; products that simplifies the integration of server virtualization and storage solutions, enabling customers to maintain a single management process. The Citrix Ready Open Storage Program, as part of the Citrix Ready Program, ensures that qualified storage solutions correctly and properly integrate with Citrix StorageLink. This provides users with a broad set of fully-tested, qualified solutions to address their storage requirements. Storage partners can leverage the standards-based StorageLink product to fully enable the broad feature set of their storage products for customers.

1. Enter Maintenance Mode on the server. Refer to the following screen shot: 2. Enable multipathing. To do so, open the server&apos;s Properties page, select the Multipathing tab, and select the Enable multipathing on this server check box. 3. Exit Maintenance Mode. 4. Repeat steps 1, 2, and 3 on each XenServer in the pool. 5. Now you can create new SRs. New SRs should go over multiple paths automatically.

CLI instructions:

1. Run the following command to set the host&apos;s other-config:multipathing parameter: # xe host-param-set other-config:multipathing=true uuid=host_uuid 2. Set the host&apos;s other-config:multipathhandle parameter to dmp: # xe host-param-set other-config:multipathhandle=dmp uuid=host_uuid 3. Repeat steps 1 and 2 on each server in the pool. 4. Now you can create new SRs. New SRs should go over multiple paths automatically.

The mppVhba driver is only loaded for specific hardware and was included as an add-on for the Dell OEM edition for supportability. This driver can be now used on any XenServer editions. The mpp RDAC must be loaded in the initrd on the system boot because of complex initialization requirements.

Refresh multipath information in XenCenter If you notice that multipath &amp;#x2013;ll shows you all the paths correctly and XenCenter shows you that some paths are not connected, you can refresh the information using:# /opt/xensource/sm/mpathcount.py